A Magnetic, Core–Shell Structured, pH-Responsive Molecularly Imprinted Polymers for the Selective Detection of Sulfamethoxazole

Huang, Weihong; Si, Haojie; Qing, Yujie; Zhang, Liming; Zhang, Wenwen; Song, Fei; Ni, Xiaoni

doi:10.1007/s10904-021-01893-7

Cited by 17 publications

(8 citation statements)

References 35 publications

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“…The peaks at 2932 and 2870 cm −1 were related to the stretching vibration of CH 3 and CH 2 in EGDMA, respectively, and the absorption peak at 1727 cm −1 could be attributed to the CO stretching vibration of ester bond and carboxyl group in system 30 . The characteristic peak of SS stretching vibration at 628 cm −1 indicated the presence of BAEDS, 31 and the arisen band at 1640 cm −1 showed the existence of unreacted CC structure 32 . All the above information indicated SMIP had been obtained.…”

Section: Resultsmentioning

confidence: 94%

“…30 The characteristic peak of S S stretching vibration at 628 cm À1 indicated the presence of BAEDS, 31 and the arisen band at 1640 cm À1 showed the existence of unreacted C C structure. 32 All the above information indicated SMIP had been obtained. Further comparing Figure 3 F with Figure 3 E, it was found that the observed band at 3274 cm À1 was significantly blue-shifted, and its peak intensity weakened.…”

Section: Ft-ir Analysismentioning

confidence: 99%

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A novel smart stealth sorafenib delivery system based on the magnetic imprinting material modified by polyethylene glycol

Wang

Bao

Tan

et al. 2023

Polymers for Advanced Techs

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In order to improve the solubility and the long-cycle performance of hydrophobic drug sorafenib (SOR), and to obtain an ideal smart drug delivery system for the effective treatment of liver cancer, S-SMIP, a pH/GSH double-sensitive sorafenib stealth imprinting material, was successfully prepared by UV-initiated surface imprinted polymerization on the basis of polyethylene glycol 2000 (PEG 2000 ) acted as "gate keeper" modified magnetic substrate. The results showed that S-SMIP had a good adsorption capacity of 260.0 mg g À1 and an excellent selectivity factor α 2.33. S-SMIP's kinetic adsorption data accorded well with the pseudo-second-order model and its mechanism was controlled mainly by chemical adsorption. The drug release experiments in vitro indicated S-SMIP could not only greatly improve the solubility of SOR, but also had the pH/GSH dual-sensitive response performance. Compared with the non-stealth imprinted material SMIP, S-SMIP still had a better long-cycle effect on the release of SOR, increasing to160 h from 130 h. So, the target material S-SMIP could greatly prolong the half-life of SOR, which provided a good idea for the development of a smart drug delivery system.

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Section: Resultsmentioning

confidence: 94%

Section: Ft-ir Analysismentioning

confidence: 99%

A novel smart stealth sorafenib delivery system based on the magnetic imprinting material modified by polyethylene glycol

Wang

Bao

Tan

et al. 2023

Polymers for Advanced Techs

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“…1, the black opaque material is Fe 3 O 4 , and the surrounding grey coating material is SiO 2 . It can be observed that SiO 2 has been successfully coated with core–shell structure, and compared with other research (Zhu et al ., 2019; He et al ., 2020; Huang et al ., 2021), the particle size of Fe 3 O 4 is 10–20 nm, with good particle size.…”

Section: Resultsmentioning

confidence: 97%

“…2, Fe 3 O 4 has an infrared absorption peak at 568 cm −1 , which corresponds to the characteristic absorption of Fe–O (Huang et al ., 2017). In addition to the characteristic absorption peak of Fe 3 O 4 , Fe 3 O 4 @SiO 2 has an infrared absorption at 1092 cm −1 , corresponding to the stretching vibration of Si–O–Si (Huang et al ., 2021). The signal at 1633 cm −1 , which is the peak of vinyl, belongs to the characteristic group of MAA.…”

Section: Resultsmentioning

confidence: 99%

Preparation of magnetic molecularly imprinted polymers for selective extraction of xylazine in milk

Chen

Zhang

Tang

et al. 2023

Int J of Food Sci Tech

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Magnetic molecularly imprinted polymers (MMIPs) were prepared by surface precipitation polymerisation, which used xylazine as its template molecule and Fe 3 O 4 as its support. The characterisation analysis and adsorption experiments of MMIPs were carried out. At the same time, promethazine, chlorpromazine, trifluoperazine, acepromazine and perphenazine were selected as structural analogues for selective experiments. The results showed MMIPs were successfully prepared with small particle size, excellent magnetic and thermal stability, high adsorption capacity and selectivity for xylazine. The maximum adsorption capacity of MMIPs for xylazine was 4.2017 mg g −1 , and the adsorption reached binding equilibrium within 30 min. The magnetic solid phase extraction (MSPE) based on MMIPs and traditional solid phase extraction (SPE) based on SPE column for xylazine in milk samples were compared and xylazine was analysed by HPLC. Although the difference between the two SPE methods was not significant, the MSPE method procedure took only about 35 min, which was faster than the traditional SPE method (>100 min), and the MSPE method had lower LOD (2.62 ng mL −1 ). MSPE has the advantages of simple operation, short extraction time, low cost and friendly to the environment, it has good application potential in the detection of xylazine in milk samples.

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“…These pollutants should be removed from water to avoid a huge health hazard to human beings, animals, and plants [ 1 , 2 , 3 ]. So far, various techniques and methods of wastewater treatment such as nanotechnology [ 4 ], biotechnology [ 5 ], molecularly imprinted technology [ 6 , 7 , 8 , 9 ], fuel cell technology [ 10 ], advanced oxidation [ 11 ], ultrafiltration [ 12 ], and adsorption have been developed. Among them, adsorption is promising because of its advantages, which include high efficiency, ease of operation, and a low cost.…”

Section: Introductionmentioning

confidence: 99%

A Weed-Derived Hierarchical Porous Carbon with a Large Specific Surface Area for Efficient Dye and Antibiotic Removal

Liang

Tian

Zhang

et al. 2022

IJMS

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Adsorption is an economical and efficient method for wastewater treatment, and its advantages are closely related to adsorbents. Herein, the Abutilon theophrasti medicus calyx (AC) was used as the precursor for producing the porous carbon adsorbent (PCAC). PCAC was prepared through carbonization and chemical activation. The product activated by potassium hydroxide exhibited a larger specific surface area, more mesopores, and a higher adsorption capacity than the product activated by sodium hydroxide. PCAC was used for adsorbing rhodamine B (RhB) and chloramphenicol (CAP) from water. Three adsorption kinetic models (the pseudo-first-order, pseudo-second-order, and intra-particle diffusion models), four adsorption isotherm models (the Langmuir, Freundlich, Sips, and Redlich–Peterson models), and thermodynamic equations were used to investigate adsorption processes. The pseudo-second kinetic and Sips isotherm models fit the experimental data well. The adsorption mechanism and the reusability of PCAC were also investigated. PCAC exhibited a large specific surface area. The maximum adsorption capacities (1883.3 mg g−1 for RhB and 1375.3 mg g−1 for CAP) of PCAC are higher than most adsorbents. Additionally, in the fixed bed experiments, PCAC exhibited good performance for the removal of RhB. These results indicated that PCAC was an adsorbent with the advantages of low-cost, a large specific surface area, and high performance.

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A Magnetic, Core–Shell Structured, pH-Responsive Molecularly Imprinted Polymers for the Selective Detection of Sulfamethoxazole

Cited by 17 publications

References 35 publications

A novel smart stealth sorafenib delivery system based on the magnetic imprinting material modified by polyethylene glycol

A novel smart stealth sorafenib delivery system based on the magnetic imprinting material modified by polyethylene glycol

Preparation of magnetic molecularly imprinted polymers for selective extraction of xylazine in milk

A Weed-Derived Hierarchical Porous Carbon with a Large Specific Surface Area for Efficient Dye and Antibiotic Removal

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